Dehumidification control method and device of air conditioner, air conditioner and storage medium

Abstract

The application provides a dehumidification control method and device of an air conditioner, the air conditioner and a storage medium, and the dehumidification control method comprises the following steps: obtaining operation parameters, environment parameters and a set humidity of the air conditioner; calculating a dew point temperature in a current state according to the environment parameters; determining a dehumidification mode of the air conditioner and controlling an operation state of the air conditioner according to the set humidity, the dew point temperature, the environment parameters and the operation parameters; according to the technical scheme of the embodiment of the application, a better dehumidification effect can be achieved, and the use experience of a user is improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a dehumidification control method, control device, air conditioner, and storage medium for an air conditioner. Background Technology

[0002] As people's living standards continue to improve, their requirements for the comfort of their living environment are also increasing. Existing air conditioners with dehumidification functions operate on the same principle as cooling modes, but they differ significantly in their intended purpose. Cooling mode primarily aims to increase cooling capacity, while dehumidification mode primarily aims to increase dehumidification capacity. When air conditioners are under different operating conditions, existing dehumidification control methods cannot achieve optimal dehumidification capacity, resulting in poor dehumidification performance. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a dehumidification control method, control device, air conditioner, and storage medium for an air conditioner, which can achieve better dehumidification effect and improve the user experience.

[0004] In a first aspect, embodiments of the present invention provide a dehumidification control method for an air conditioner, comprising:

[0005] Obtain the operating parameters, environmental parameters, and set humidity of the air conditioner;

[0006] Calculate the dew point temperature under the current conditions based on the environmental parameters;

[0007] Based on the set humidity, the dew point temperature, the environmental parameters, and the operating parameters, the dehumidification mode of the air conditioner is determined and the operating status of the air conditioner is controlled.

[0008] The dehumidification control method for an air conditioner provided according to the embodiments of the present invention has at least the following beneficial effects: by acquiring the operating parameters, environmental parameters, and set humidity of the air conditioner, and calculating the dew point temperature under the current state based on the environmental parameters, the dehumidification mode of the air conditioner is determined and the operating state of the air conditioner is controlled based on the set humidity, dew point temperature, environmental parameters, and operating parameters. By controlling the air conditioner to be in different operating states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user's user experience.

[0009] In the above-mentioned dehumidification control method for air conditioners, the dehumidification mode includes a fast mode, a high-efficiency mode, and a silent mode, and the environmental parameters include indoor air humidity; determining the dehumidification mode of the air conditioner includes:

[0010] When the humidity difference is greater than or equal to the first preset value, the air conditioner is controlled to operate in the fast mode;

[0011] When the humidity difference is greater than the second preset value and less than the first preset value, the air conditioner is controlled to operate in the high-efficiency mode.

[0012] When the humidity difference is less than or equal to the second preset value, the air conditioner is controlled to operate in the silent mode.

[0013] The humidity difference is the difference between the indoor air humidity and the set humidity, and the second preset value is less than the first preset value.

[0014] If the humidity difference is greater than or equal to the first preset value, it indicates that the indoor air humidity is much higher than the set humidity, and the air conditioner is operating under high humidity conditions. In this case, it is determined that rapid dehumidification is needed, and the air conditioner is controlled to operate in fast mode to achieve rapid dehumidification. If the humidity difference is greater than the second preset value but less than the first preset value, it indicates that the difference between the indoor air humidity and the set humidity is not significant. This may be because the air conditioner has been running in dehumidification mode for a period of time or the user requires less dehumidification. In this case, the air conditioner still needs to continue dehumidifying, and the air conditioner is controlled to operate in high-efficiency mode to reduce power consumption. If the humidity difference is less than or equal to the second preset value, it indicates that the indoor air humidity has reached the set humidity range. To avoid excessive noise caused by frequent compressor starts and stops, the air conditioner is controlled to operate in silent mode to improve the user experience.

[0015] In the above-mentioned dehumidification control method for air conditioners, the operating parameters include evaporation temperature, and in the fast mode, controlling the operating state of the air conditioner includes:

[0016] Set the fan speed to a first speed, which is greater than the preset speed when the air conditioner is turned on;

[0017] The evaporation temperature setpoint is determined based on the dew point temperature and the first rotation speed.

[0018] Adjust the opening of the electronic expansion valve and the compressor frequency according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

[0019] When the humidity difference is greater than or equal to the first preset value, the air conditioner is in a high humidity condition and determines that rapid dehumidification is needed. It then enters the fast mode, which increases the air volume by setting the fan speed to the first speed, which is greater than the preset speed when the air conditioner is turned on. The evaporation temperature setpoint is determined based on the dew point temperature and the first speed. The resulting evaporation temperature setpoint is the temperature at which the air conditioner can achieve maximum dehumidification in fast mode. By adjusting the opening of the electronic expansion valve and the compressor frequency, the evaporation temperature is made equal to the evaporation temperature setpoint, thereby achieving the purpose of rapid dehumidification.

[0020] In the above-mentioned dehumidification control method for air conditioners, the operating parameters include evaporation temperature, and in the high-efficiency mode, controlling the operating state of the air conditioner includes:

[0021] The evaporation temperature setpoint is determined based on the dew point temperature.

[0022] The fan speed is determined based on the dew point temperature and the evaporation temperature setpoint.

[0023] Adjust the opening of the electronic expansion valve and the compressor frequency according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

[0024] When the humidity difference is greater than the second preset value and less than the first preset value, the air conditioner enters the high-efficiency mode. Since the indoor air humidity is close to the set humidity and dehumidification still needs to continue, the evaporation temperature set value is first determined based on the dew point temperature. The evaporation temperature set value obtained at this time is the temperature at which the air conditioner can achieve a better dehumidification effect in the high-efficiency mode. The fan speed is then determined based on the evaporation temperature set value and the dew point temperature. The fan speed obtained at this time is the speed at which the air conditioner can achieve a better dehumidification effect in the high-efficiency mode. Running at the above fan speed can ensure the high energy efficiency of the air conditioner. By adjusting the opening of the electronic expansion valve and the compressor frequency, the evaporation temperature is made equal to the evaporation temperature set value to achieve a good dehumidification effect.

[0025] In the above-mentioned dehumidification control method for air conditioners, the operating parameters include evaporation temperature, and in the silent mode, controlling the operating state of the air conditioner includes:

[0026] Set the fan speed to a second speed and the compressor frequency to a first frequency, wherein the second speed is less than the preset speed when the air conditioner is turned on, and the first frequency is less than the preset frequency when the air conditioner is turned on.

[0027] The evaporation temperature setpoint is determined based on the dew point temperature and the second rotation speed.

[0028] Adjust the opening of the electronic expansion valve according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

[0029] When the humidity difference is less than or equal to the second preset value, it means that the indoor air humidity has reached the set humidity range, and the air conditioner enters the silent mode. By adjusting the fan speed and compressor frequency, setting the fan speed to the second speed and the compressor frequency to the first frequency, a silent effect can be achieved. At the same time, the evaporation temperature set value is determined based on the dew point temperature and the second speed. The evaporation temperature set value obtained at this time is the temperature at which the air conditioner can achieve a better dehumidification effect in the fast mode. By adjusting the opening of the electronic expansion valve, the evaporation temperature is made equal to the evaporation temperature set value to achieve a good dehumidification effect.

[0030] In the dehumidification control method of the above-mentioned air conditioner, when the evaporation temperature setpoint is less than or equal to the frosting critical temperature, the value of the frosting critical temperature is used as the evaporation temperature setpoint.

[0031] It is understandable that the evaporation temperature setting value is different for different dehumidification modes. When the evaporation temperature setting value is less than or equal to the frosting critical temperature, it means that the evaporation temperature setting value may cause the evaporator to frost. Therefore, the value of the frosting critical temperature is used as the evaporation temperature setting value, that is, the evaporation temperature setting value is equal to the frosting critical temperature, so that the evaporator can work normally and the operating status of the air conditioner is adjusted so that the evaporation temperature is equal to the evaporation temperature setting value, thus ensuring the normal dehumidification of the air conditioner.

[0032] In the dehumidification control method of the above-mentioned air conditioner, the step of adjusting the opening degree of the electronic expansion valve and the compressor frequency according to the evaporation temperature setpoint includes:

[0033] When the evaporation temperature is greater than the set evaporation temperature value, increase the opening of the electronic expansion valve and / or increase the compressor frequency;

[0034] When the evaporation temperature is lower than the set evaporation temperature value, reduce the opening of the electronic expansion valve and / or reduce the compressor frequency.

[0035] It should be noted that when the evaporating temperature is higher than the set evaporating temperature value, the opening of the electronic expansion valve and / or the compressor frequency can be increased to lower the evaporating temperature. Specifically, the opening of the electronic expansion valve or the compressor frequency can be increased alone, or both can be increased simultaneously. By simultaneously adjusting the electronic expansion valve and the compressor, the adjustment efficiency can be improved, allowing the evaporating temperature to reach the set evaporating temperature value more quickly. When the evaporating temperature is lower than the set evaporating temperature value, the opening of the electronic expansion valve and / or the compressor frequency can be decreased to increase the evaporating temperature. Specifically, the opening of the electronic expansion valve or the compressor frequency can be decreased alone, or both can be decreased simultaneously.

[0036] In the dehumidification control method of the above-mentioned air conditioner, the step of adjusting the opening of the electronic expansion valve according to the evaporation temperature setpoint includes:

[0037] When the evaporation temperature is greater than the set evaporation temperature value, increase the opening of the electronic expansion valve;

[0038] When the evaporation temperature is lower than the set evaporation temperature value, the opening of the electronic expansion valve is reduced.

[0039] It should be noted that when the evaporation temperature is higher than the set evaporation temperature value, the opening of the electronic expansion valve can be increased to reduce the evaporation temperature. Similarly, when the evaporation temperature is lower than the set evaporation temperature value, the opening of the electronic expansion valve can be decreased to increase the evaporation temperature. By adjusting the opening of the electronic expansion valve, the evaporation temperature can be brought up to the set evaporation temperature value, thereby ensuring a good dehumidification effect.

[0040] In the above-mentioned dehumidification control method for air conditioners, when the evaporation temperature is equal to the evaporation temperature setpoint, after running for a first preset time, the operating parameters, environmental parameters, and set humidity of the air conditioner are re-acquired, and the dew point temperature is recalculated.

[0041] After the evaporation temperature reaches the set value, the air conditioner continues to run for a first preset time to ensure stable and reliable operation. After the first preset time, the air conditioner's operating parameters, environmental parameters, and set humidity are reacquired, and the dew point temperature is recalculated. Based on the new operating parameters, environmental parameters, set humidity, and dew point temperature, the air conditioner's dehumidification mode is redefined, and its operating status is controlled. This allows for real-time adjustment of the air conditioner's operating status, improving the flexibility and accuracy of air conditioner control and thus enhancing its energy efficiency.

[0042] In a second aspect, embodiments of the present invention provide an operation control device, including at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor, which, when executed by the at least one control processor, enable the at least one control processor to perform the dehumidification control method as described in the first aspect embodiment above.

[0043] The operation control device provided by the embodiments of the present invention has at least the following beneficial effects: by acquiring the operating parameters, environmental parameters and set humidity of the air conditioner, and calculating the dew point temperature under the current state based on the environmental parameters, the dehumidification mode of the air conditioner is determined and the operating state of the air conditioner is controlled based on the set humidity, dew point temperature, environmental parameters and operating parameters. By controlling the air conditioner to be in different operating states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user experience.

[0044] Thirdly, embodiments of the present invention provide an air conditioner including the operation control device described in the second aspect of the embodiments above.

[0045] The air conditioner provided according to the embodiments of the present invention has at least the following beneficial effects: by acquiring the operating parameters, environmental parameters and set humidity of the air conditioner, and calculating the dew point temperature under the current state based on the environmental parameters, the dehumidification mode of the air conditioner is determined and the operating state of the air conditioner is controlled based on the set humidity, dew point temperature, environmental parameters and operating parameters. By controlling the air conditioner to be in different operating states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user's user experience.

[0046] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the dehumidification control method as described in the first aspect embodiment above.

[0047] The computer-readable storage medium provided in the embodiments of the present invention has at least the following beneficial effects: by acquiring the operating parameters, environmental parameters, and set humidity of the air conditioner, and calculating the dew point temperature under the current state based on the environmental parameters, the dehumidification mode of the air conditioner is determined and the operating state of the air conditioner is controlled based on the set humidity, dew point temperature, environmental parameters, and operating parameters. By controlling the air conditioner to be in different operating states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user experience.

[0048] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0050] Figure 1 This is a schematic diagram of the refrigeration system of the air conditioner provided in Embodiment 1 of the present invention.

[0051] Figure 2 This is a flowchart of the dehumidification control method for an air conditioner provided in Embodiment 2 of the present invention;

[0052] Figure 3 This is a flowchart of the dehumidification control method for an air conditioner provided in Embodiment 3 of the present invention;

[0053] Figure 4 This is a flowchart of the dehumidification control method for an air conditioner provided in Embodiment 4 of the present invention;

[0054] Figure 5 This is a flowchart of the dehumidification control method for an air conditioner provided in Embodiment 5 of the present invention;

[0055] Figure 6 This is a flowchart of the dehumidification control method for an air conditioner provided in Embodiment Six of the present invention;

[0056] Figure 7 This is a flowchart of the dehumidification control method for an air conditioner provided in Embodiment 7 of the present invention;

[0057] Figure 8 This is a flowchart of the dehumidification control method for an air conditioner provided in Embodiment 8 of the present invention;

[0058] Figure 9 This is an overall flowchart of the dehumidification control method for an air conditioner provided in Embodiment 9 of the present invention;

[0059] Figure 10 This is a schematic diagram of the operation control device provided in Embodiment 10 of the present invention. Detailed Implementation

[0060] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0061] It should be understood that in the description of the embodiments of the present invention, the use of terms such as "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated. "At least one" means one or more; "more than" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number; "several" means one or more, unless otherwise explicitly defined. "And / or" describes the relationship between related objects, indicating that three relationships can exist. It can be understood that A and / or B can represent the existence of A alone, the simultaneous existence of A and B, or the existence of B alone. Where A and B can be singular or plural.

[0062] Furthermore, unless otherwise explicitly specified and limited, the term "connection / linkage" should be interpreted broadly. For example, it can be a fixed or movable connection, a detachable or non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between them; it can be a direct connection or an indirect connection through an intermediate medium. It should be noted that although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown in the flowchart.

[0063] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0064] The dehumidification control method, control device, air conditioner, and storage medium provided in this invention can achieve better dehumidification effect and improve the user experience.

[0065] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0066] like Figure 1 As shown, the air conditioner of this embodiment includes a refrigeration system that enables the air conditioner to operate in dehumidification mode. The refrigeration system includes a compressor, an evaporator, a condenser, and an electronic expansion valve. The condenser is connected to both the compressor and the electronic expansion valve, and the evaporator is connected to both the electronic expansion valve and the compressor. The electronic expansion valve is located between the condenser and the evaporator. The compressor draws in refrigerant vapor from the evaporator, compresses it to the condensing pressure, and discharges it to the condenser. The condenser condenses the high-pressure refrigerant vapor from the compressor into a liquid, and heat exchange occurs during the condensation process. The refrigerant liquid passes through the electronic expansion valve for throttling and pressure reduction before entering the evaporator, where it absorbs heat and evaporates, turning into a gas before entering the compressor for compression. It should be noted that the electronic expansion valve can regulate the refrigerant flow rate into the evaporator.

[0067] It will be understood by those skilled in the art that Figure 1 The refrigeration system of the air conditioner shown does not constitute a limitation on the embodiments of the present invention, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0068] like Figure 2 As shown, based on the above Figure 1 An embodiment of the first aspect of the present invention provides a dehumidification control method for an air conditioner, including but not limited to steps S110 to S130:

[0069] Step S110: Obtain the air conditioner's operating parameters, environmental parameters, and set humidity.

[0070] It should be noted that the set humidity refers to the ambient humidity desired by the user. Since the operating status of an air conditioner varies under different conditions and in different environments, obtaining the air conditioner's operating parameters and environmental parameters can reflect the air conditioner's performance under the current conditions. Operating parameters may include, but are not limited to, applicable parameters such as evaporator temperature, condenser temperature, and compressor frequency. Environmental parameters may include, but are not limited to, applicable parameters such as indoor and outdoor air temperature, indoor and outdoor air humidity, evaporator-side airflow, and condenser-side airflow.

[0071] Step S120: Calculate the dew point temperature under the current conditions based on environmental parameters.

[0072] It should be noted that dew point temperature represents the temperature at which unsaturated moist air cools to saturation under a certain water vapor partial pressure, i.e., the temperature at which water vapor in the air condenses into dew. The dew point temperature can be calculated using existing methods. Specifically, environmental parameters include indoor air temperature and indoor air humidity. Indoor air temperature refers to the air temperature on the evaporator inlet side, which can be obtained by a temperature sensor on the evaporator inlet side. Indoor air humidity represents the ratio of the water vapor partial pressure in moist air to the water vapor partial pressure in saturated moist air at the same temperature and total pressure, which can be obtained by a humidity sensor on the evaporator inlet side. The dew point temperature can be calculated based on the indoor air temperature and indoor air humidity. For example, the Marglas formula can be used. The indoor air temperature and indoor air humidity are substituted into the Marglas formula to calculate the initial dew point temperature. This initial dew point temperature is then used as the initial value, and repeated approximations are performed to obtain the final dew point temperature. This embodiment of the invention does not impose specific limitations on the calculation method of the dew point temperature.

[0073] Step S130: Determine the dehumidification mode of the air conditioner and control the operating status of the air conditioner based on the set humidity, dew point temperature, environmental parameters and operating parameters.

[0074] When the air conditioner is running in dehumidification mode, the hot and humid air passes over the cold evaporator surface, and the air temperature drops below the dew point temperature, thereby precipitating the water vapor in the air and achieving the dehumidification effect. By calculating the dew point temperature based on environmental parameters and using the dew point temperature as a control parameter, it is easier to control the operating status of the air conditioner, thereby achieving a better dehumidification effect.

[0075] It is understandable that air conditioners operate in different states and environmental conditions depending on their dehumidification mode. By combining the set humidity, dew point temperature, environmental parameters, and operating parameters, the required dehumidification mode for the air conditioner can be determined and its operating state controlled. It should be noted that the air conditioner's operating state differs depending on the dehumidification mode it is in. By determining different dehumidification modes based on different operating conditions and user needs, and thus selecting different control methods, better dehumidification effects can be achieved, which is beneficial to improving the user experience.

[0076] The dehumidification control method for an air conditioner provided in the first aspect embodiment above obtains the operating parameters, environmental parameters, and set humidity of the air conditioner, calculates the dew point temperature under the current state based on the environmental parameters, determines the dehumidification mode of the air conditioner based on the set humidity, dew point temperature, environmental parameters, and operating parameters, and controls the operating state of the air conditioner. By controlling the air conditioner to be in different operating states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user experience.

[0077] like Figure 3 As shown, in the above-mentioned dehumidification control method for air conditioners, the dehumidification modes include fast mode, high-efficiency mode, and silent mode, and the environmental parameters include indoor air humidity; the dehumidification mode of the air conditioner is determined in step S130, including but not limited to steps S210 to S230:

[0078] Step S210: When the humidity difference is greater than or equal to the first preset value, control the air conditioner to operate in fast mode;

[0079] Step S220: When the humidity difference is greater than the second preset value and less than the first preset value, control the air conditioner to operate in high-efficiency mode;

[0080] Step S230: When the humidity difference is less than or equal to the second preset value, control the air conditioner to operate in silent mode;

[0081] The humidity difference is the difference between the indoor air humidity and the set humidity, and the second preset value is less than the first preset value.

[0082] Understandably, if the humidity difference is greater than or equal to the first preset value, it indicates that the indoor air humidity is much higher than the set humidity, and the air conditioner is operating under high humidity conditions. In this case, it is determined that rapid dehumidification is needed, and the air conditioner is controlled to operate in fast mode to achieve rapid dehumidification. If the humidity difference is greater than the second preset value but less than the first preset value, it indicates that the difference between the indoor air humidity and the set humidity is not significant. This may be because the air conditioner has been running in dehumidification mode for a period of time or the user requires less dehumidification. In this case, the air conditioner still needs to continue dehumidifying, and it is controlled to operate in high-efficiency mode to reduce power consumption. If the humidity difference is less than or equal to the second preset value, it indicates that the indoor air humidity has reached the set humidity range. To avoid excessive noise caused by frequent compressor starts and stops, the air conditioner is controlled to operate in silent mode to improve the user experience.

[0083] It should be noted that by acquiring the indoor air humidity and the set humidity, the current humidity status and the user's dehumidification needs can be accurately reflected. Different dehumidification modes are determined based on the difference between the indoor air humidity and the set humidity. In other words, different dehumidification modes are determined based on the humidity difference, ensuring that the air conditioner operates in different dehumidification modes under different operating conditions. This adjusts the dehumidification control state and helps to achieve better dehumidification results.

[0084] like Figure 4 As shown, in the above-mentioned dehumidification control method for air conditioners, the operating parameters include evaporation temperature. In fast mode, step S130 controls the operating state of the air conditioner, including but not limited to steps S310 to S330:

[0085] Step S310: Set the fan speed to the first speed, which is greater than the preset speed when the air conditioner is turned on;

[0086] Step S320: Determine the evaporation temperature setpoint based on the dew point temperature and the first rotation speed;

[0087] Step S330: Adjust the opening of the electronic expansion valve and the compressor frequency according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

[0088] It should be noted that the evaporation temperature is the actual temperature of the heat exchange copper tubes in the middle of the evaporator during air conditioner operation, obtained by a temperature sensor located on the evaporator. The fan is mounted on the evaporator; increasing the fan speed achieves better dehumidification.

[0089] When the humidity difference is greater than or equal to the first preset value, the air conditioner is in a high humidity condition and determines that rapid dehumidification is needed. It then enters the fast mode, which increases the air volume by setting the fan speed to the first speed, which is greater than the preset speed when the air conditioner is turned on. The evaporation temperature setpoint is determined based on the dew point temperature and the first speed. The resulting evaporation temperature setpoint is the temperature at which the air conditioner can achieve maximum dehumidification in fast mode. By adjusting the opening of the electronic expansion valve and the compressor frequency, the evaporation temperature is made equal to the evaporation temperature setpoint, thereby achieving the purpose of rapid dehumidification.

[0090] It should be noted that by adjusting the fan speed and evaporation temperature in the fast mode, the dehumidification capacity can be increased by using a large air volume and a low evaporation temperature, so that the indoor air humidity can reach the set humidity as soon as possible, which helps to improve the user experience.

[0091] Specifically, the corresponding evaporation temperature setting can be obtained by querying the preset first parameter table based on the dew point temperature and the first rotation speed. The data in the first parameter table is obtained by laboratory testing and can reflect the correspondence between the dew point temperature, the first rotation speed, and the evaporation temperature setting in the air conditioner in fast mode.

[0092] like Figure 5 As shown, in the above-mentioned dehumidification control method for air conditioners, the operating parameters include evaporation temperature. In high-efficiency mode, step S130 controls the operating state of the air conditioner, including but not limited to steps S410 to S430:

[0093] Step S410: Determine the evaporation temperature setpoint based on the dew point temperature;

[0094] Step S420: Determine the fan speed based on the dew point temperature and evaporation temperature setpoints;

[0095] Step S430: Adjust the opening of the electronic expansion valve and the compressor frequency according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

[0096] When the humidity difference is greater than the second preset value and less than the first preset value, the air conditioner enters the high-efficiency mode. Since the indoor air humidity is close to the set humidity and dehumidification still needs to continue, the evaporation temperature set value is first determined based on the dew point temperature. The evaporation temperature set value obtained at this time is the temperature at which the air conditioner can achieve a better dehumidification effect in the high-efficiency mode. The fan speed is then determined based on the evaporation temperature set value and the dew point temperature. The fan speed obtained at this time is the speed at which the air conditioner can achieve a better dehumidification effect in the high-efficiency mode. Running at the above fan speed can ensure the high energy efficiency of the air conditioner. By adjusting the opening of the electronic expansion valve and the compressor frequency, the evaporation temperature is made equal to the evaporation temperature set value to achieve a good dehumidification effect.

[0097] Understandably, when the indoor air humidity is not much different from the set humidity and dehumidification is still required, in order to avoid the air conditioner running at high power and causing low energy efficiency, high-efficiency dehumidification should be prioritized. This ensures the dehumidification effect while reducing power consumption, thus achieving the goal of energy saving.

[0098] Specifically, the corresponding evaporation temperature setpoint can be obtained by consulting a preset second parameter table based on the dew point temperature. The data in the second parameter table is obtained from laboratory tests and reflects the correspondence between the dew point temperature and the evaporation temperature setpoint in the air conditioner's high-efficiency mode. Additionally, the corresponding fan speed can be obtained by consulting a preset third parameter table based on the dew point temperature and the evaporation temperature setpoint. The data in the third parameter table is obtained from laboratory tests and reflects the correspondence between the dew point temperature, the evaporation temperature setpoint, and the fan speed in the air conditioner's high-efficiency mode.

[0099] like Figure 6 As shown, in the above-mentioned dehumidification control method for air conditioners, the operating parameters include evaporation temperature. In silent mode, step S130 controls the operating state of the air conditioner, including but not limited to steps S510 to S530:

[0100] Step S510: Set the fan speed to the second speed and the compressor frequency to the first frequency. The second speed is less than the preset speed when the air conditioner is turned on, and the first frequency is less than the preset frequency when the air conditioner is turned on.

[0101] Step S520: Determine the evaporation temperature setpoint based on the dew point temperature and the second rotation speed;

[0102] Step S530: Adjust the opening of the electronic expansion valve according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

[0103] When the humidity difference is less than or equal to the second preset value, it means that the indoor air humidity has reached the set humidity range, and the air conditioner enters the silent mode. By adjusting the fan speed and compressor frequency, setting the fan speed to the second speed and the compressor frequency to the first frequency, a silent effect can be achieved. At the same time, the evaporation temperature set value is determined based on the dew point temperature and the second speed. The evaporation temperature set value obtained at this time is the temperature at which the air conditioner can achieve a better dehumidification effect in the fast mode. By adjusting the opening of the electronic expansion valve, the evaporation temperature is made equal to the evaporation temperature set value to achieve a good dehumidification effect.

[0104] Understandably, when the indoor air humidity reaches the set humidity range, the fan speed and compressor frequency can be appropriately reduced to slightly decrease the indoor air humidity while ensuring good noise reduction.

[0105] Specifically, the corresponding evaporation temperature setting can be obtained by querying the preset fourth parameter table based on the dew point temperature and the second speed. The data in the fourth parameter table is obtained by laboratory testing and can reflect the correspondence between the dew point temperature, the second speed, and the evaporation temperature setting in the silent mode of the air conditioner.

[0106] Unlike existing air conditioners that stop running the compressor when the indoor humidity reaches the set humidity level in dehumidification mode and then restart it when the indoor humidity rises, causing excessive noise due to frequent compressor start-stop cycles, this invention reduces the noise generated during air conditioner operation by setting a silent mode. This is achieved by adjusting the fan speed, compressor frequency, and evaporation temperature, while maintaining a certain dehumidification capacity. This results in quiet dehumidification, improving the user experience and ensuring the stability of the compressor, thus enhancing the reliability of the air conditioner.

[0107] In the dehumidification control method of the above-mentioned air conditioner, when the evaporation temperature setpoint is less than or equal to the frosting critical temperature, the value of the frosting critical temperature is used as the evaporation temperature setpoint.

[0108] It should be noted that the frosting critical temperature represents the lowest evaporation temperature at which there is no risk of frosting on the evaporator fins under certain ambient temperature and humidity conditions.

[0109] It is understandable that the evaporation temperature setting value is different for different dehumidification modes. When the evaporation temperature setting value is less than or equal to the frosting critical temperature, it means that the evaporation temperature setting value may cause the evaporator to frost. Therefore, the value of the frosting critical temperature is used as the evaporation temperature setting value, that is, the evaporation temperature setting value is equal to the frosting critical temperature, so that the evaporator can work normally and the operating status of the air conditioner is adjusted so that the evaporation temperature is equal to the evaporation temperature setting value, thus ensuring the normal dehumidification of the air conditioner.

[0110] It should be noted that when the evaporation temperature setpoint is greater than the frosting critical temperature, it means that the evaporation temperature setpoint will not cause the evaporator to frost. There is no risk of frost forming on the evaporator, and the air conditioner's operating status can be directly adjusted to make the evaporation temperature equal to the evaporation temperature setpoint.

[0111] like Figure 7 As shown above, in the above Figure 4 and Figure 5 In the dehumidification control method of the air conditioner shown, the adjustment of the electronic expansion valve opening and compressor frequency according to the evaporation temperature setpoint in steps S330 and S430 includes, but is not limited to, steps S610 and S620:

[0112] Step S610: When the evaporation temperature is greater than the set evaporation temperature value, increase the opening of the electronic expansion valve and / or increase the compressor frequency;

[0113] Step S620: When the evaporation temperature is lower than the evaporation temperature set value, reduce the opening of the electronic expansion valve and / or reduce the compressor frequency.

[0114] It should be noted that, based on the throttling effect of the electronic expansion valve, the refrigerant flow rate can be adjusted by regulating the opening of the electronic expansion valve, thereby adjusting the evaporator temperature. In addition, the evaporator temperature can also be adjusted by regulating the compressor frequency.

[0115] When the evaporation temperature is higher than the set evaporation temperature, the opening of the electronic expansion valve can be increased and / or the compressor frequency can be increased to reduce the evaporation temperature. Specifically, the opening of the electronic expansion valve can be increased or the compressor frequency can be increased, or the opening of the electronic expansion valve and the compressor frequency can be increased at the same time. By adjusting the electronic expansion valve and the compressor at the same time, the adjustment efficiency can be improved, so that the evaporation temperature reaches the set evaporation temperature more quickly.

[0116] When the evaporation temperature is lower than the set evaporation temperature, the opening of the electronic expansion valve can be reduced and / or the compressor frequency can be decreased to increase the evaporation temperature. Specifically, the opening of the electronic expansion valve can be reduced or the compressor frequency can be decreased, or both the opening of the electronic expansion valve and the compressor frequency can be decreased simultaneously.

[0117] By adjusting the opening of the electronic expansion valve and the compressor frequency, the evaporation temperature can be made to reach the set value, thereby ensuring a good dehumidification effect.

[0118] like Figure 8 As shown above, in the above Figure 6 In the dehumidification control method of the air conditioner shown, step S530, which adjusts the opening of the electronic expansion valve according to the evaporation temperature setpoint, includes, but is not limited to, steps S710 and S720:

[0119] Step S710: When the evaporation temperature is greater than the set evaporation temperature value, increase the opening of the electronic expansion valve;

[0120] Step S720: When the evaporation temperature is lower than the set evaporation temperature, reduce the opening of the electronic expansion valve.

[0121] It should be noted that when the evaporation temperature is higher than the set evaporation temperature value, the opening of the electronic expansion valve can be increased to reduce the evaporation temperature. Similarly, when the evaporation temperature is lower than the set evaporation temperature value, the opening of the electronic expansion valve can be decreased to increase the evaporation temperature. By adjusting the opening of the electronic expansion valve, the evaporation temperature can be brought up to the set evaporation temperature value, thereby ensuring a good dehumidification effect.

[0122] It is understandable that in the above embodiments, different dehumidification modes are determined based on the difference between indoor air humidity and set humidity. Based on different dehumidification modes, the air conditioner operates in an optimal state through the linkage control of fan speed and evaporation temperature, which is conducive to realizing the intelligent dehumidification control of the air conditioner and can better meet the user's needs.

[0123] In the dehumidification control method of the above-mentioned air conditioner, when the evaporation temperature is equal to the evaporation temperature setpoint, after running for a first preset time, the operating parameters, environmental parameters and set humidity of the air conditioner are re-acquired and the dew point temperature is recalculated.

[0124] It should be noted that after the evaporation temperature reaches the set evaporation temperature, the air conditioner continues to operate for a first preset time to ensure the stable and reliable operation of the air conditioner. After operating for the first preset time, the operating parameters, environmental parameters and set humidity of the air conditioner are reacquired, the dew point temperature is recalculated, the dehumidification mode of the air conditioner is redetermined according to the new operating parameters, new environmental parameters, new set humidity and new dew point temperature, and the operating state of the air conditioner is controlled, so that the operating state of the air conditioner can be adjusted in real time, which is beneficial to improving the flexibility and accuracy of air conditioner control, thereby improving the energy efficiency of the air conditioner.

[0125] In order to more clearly illustrate the dehumidification control method for an air conditioner of the present invention, a complete embodiment will be used for further description below.

[0126] As shown in Figure 9 , the dehumidification control method for an air conditioner of the present invention is specifically as follows:

[0127] 1. Power on;

[0128] 2. The refrigeration system starts up, and the compressor, electronic expansion valve and fan operate according to preset states;

[0129] 3. Detect current indoor air temperature T1, indoor air humidity RH1, preset fan rotation speed LA, evaporation temperature T2, set humidity RH S ;

[0130] 4. Calculate dew point temperature T d under the current state;

[0131] 5. Compare the magnitude between RH1-RH S and C1; if RH1-RH S ≥ C1, perform step 6; if RH1-RH S < C1, perform step 11; wherein C1 is a first preset value;

[0132] 6. The air conditioner enters the fast mode, and the fan rotation speed is set to LA K ; wherein LA K is a first rotation speed, LA K > LA;

[0133] 7. The set evaporation temperature value is T 2K , T 2K = f(T d , LA K ); T 2K is the set evaporation temperature value in the fast mode, which is determined according to the dew point temperature T d and the first rotation speed LA K ;

[0134] 8. Compare T 2KWith T b The size of T; if T 2K ≤T b There is a risk of frost formation; proceed to step 9. If T 2K >T b There is no risk of frost formation; proceed to step 10. (T) b This is the critical temperature for frosting.

[0135] 9. T 2K =T b At this time, T 2K This may cause frost to form on the evaporator, which will affect the T. 2K Set as T b ;

[0136] 10. Adjust the electronic expansion valve and compressor frequency to make the evaporation temperature T2 = T 2K After running for time t, return to step 3; where t is the first preset time;

[0137] 11. Compare RH1-RH S With the size of C2; if RH1-RH S >C2, proceed to step 12; if RH1-RH S If ≤C2, proceed to step 17; where C2 is the second preset value;

[0138] 12. The air conditioner enters high-efficiency mode, and the evaporator temperature setting is T. 2G T 2G =f(T) d );T 2G The evaporation temperature setpoint in high-efficiency mode is based on the dew point temperature T. d Sure;

[0139] 13. Compare T 2G With T b The size of T; if T 2G ≤T b There is a risk of frost formation; proceed to step 14. If T 2G >T b There is no risk of frost formation; proceed to step 15.

[0140] 14. T 2G =T b At this time, T 2G This may cause frost to form on the evaporator, which will affect the T. 2G Set as T b ;

[0141] 15. The fan speed is set to LA. G LA G =f(T) d T 2G );LAG According to the dew point temperature T d and evaporation temperature setpoint T 2G Sure;

[0142] 16. Adjust the electronic expansion valve and compressor frequency to make the evaporation temperature T2 = T 2G After running for time t, return to step 3;

[0143] 17. The air conditioner enters silent mode;

[0144] 18. The fan speed is set to LA. J The compressor frequency is set to FA. J Among them, LA J For the second rotational speed, LA J <LA;

[0145] 19. The evaporation temperature setting is T. 2J T 2J =f(T) d LA J );T 2J The evaporation temperature setting for silent mode is based on the dew point temperature T. d Second speed LA J Sure;

[0146] 20. Compare T 2J With T b The size of T; if T 2J ≤T b There is a risk of frost formation; proceed to step 21. If T 2J >T b There is no risk of frost formation; proceed to step 22.

[0147] 21. T 2J =T b At this time, T 2J This may cause frost to form on the evaporator, which will affect the T. 2J Set as T b ;

[0148] 22. Adjust the electronic expansion valve to make the evaporation temperature T2 = T 2J After running for time t, return to step 3.

[0149] In the dehumidification control method of the air conditioner in the above embodiments, when the humidity difference is greater than or equal to a first preset value, the air conditioner is in a high humidity condition and enters a fast mode. The fan speed is set to a first speed, which is greater than the preset speed when the air conditioner is turned on. The evaporation temperature setpoint is determined based on the dew point temperature and the first speed. By adjusting the opening of the electronic expansion valve and the compressor frequency, the evaporation temperature is made equal to the evaporation temperature setpoint. In fast mode, rapid dehumidification can be achieved through a large air volume and a low evaporation temperature. When the humidity difference is greater than a second preset value but less than the first preset value, the air conditioner enters a high-efficiency mode. First, the evaporation temperature setpoint is determined based on the dew point temperature. Then, the fan speed is determined based on the determined evaporation temperature setpoint and the dew point temperature. By adjusting the opening of the electronic expansion valve and the compressor frequency, the evaporation temperature is made equal to the evaporation temperature setpoint. By prioritizing high-efficiency dehumidification, energy saving is achieved while ensuring dehumidification effectiveness. When the humidity difference is less than or equal to the second preset value, the air conditioner enters silent mode. By setting the fan speed to the second speed and the compressor frequency to the first frequency, the second speed is less than the preset speed when the air conditioner is turned on, and the first frequency is less than the preset frequency when the air conditioner is turned on, a silent effect can be achieved. At the same time, the evaporation temperature set value is determined according to the dew point temperature and the second speed. By adjusting the opening of the electronic expansion valve, the evaporation temperature is made equal to the evaporation temperature set value, reducing the noise generated during the operation of the air conditioner while ensuring a certain amount of dehumidification, thus achieving a silent dehumidification effect.

[0150] like Figure 10 As shown, a second aspect embodiment of the present invention provides an operation control device 1000, including at least one control processor 1010 and a memory 1020 for communicatively connecting to the at least one control processor 1010; the control processor 1010 and the memory 1020 can be connected via a bus or other means. Figure 10 The diagram illustrates an example of a bus connection. The memory 1020 stores instructions executable by at least one control processor 1010. These instructions, when executed by the at least one control processor 1010, enable the at least one control processor 1010 to perform the dehumidification control method of the air conditioner as described in the first aspect embodiment above, for example, performing the above-described... Figure 2 Method steps S110 to S130 in the text Figure 3 Method steps S210 to S230 in the text Figure 4 Method steps S310 to S330 in the text Figure 5 Method steps S410 to S430, Figure 6 Method steps S510 to S530 in the text Figure 7 Method steps S610 and S620 in the text Figure 8 Method steps S710 and S720, and Figure 9The method involves obtaining the air conditioner's operating parameters, environmental parameters, and set humidity. Based on the environmental parameters, the dew point temperature under the current conditions is calculated. Then, based on the set humidity, dew point temperature, environmental parameters, and operating parameters, the dehumidification mode of the air conditioner is determined, and its operating state is controlled. By controlling the air conditioner to operate in different states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user experience.

[0151] A third aspect of the present invention provides an air conditioner including the operation control device described in the second aspect embodiment above. The air conditioner of this embodiment acquires the air conditioner's operating parameters, environmental parameters, and set humidity, calculates the dew point temperature under the current state based on the environmental parameters, determines the dehumidification mode of the air conditioner based on the set humidity, dew point temperature, environmental parameters, and operating parameters, and controls the air conditioner's operating state. By controlling the air conditioner to operate in different states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user experience.

[0152] A fourth aspect of the present invention provides a computer-readable storage medium storing computer-executable instructions that can be used to cause a computer to perform the dehumidification control method of an air conditioner as described in the first aspect embodiment above, for example, performing the above-described... Figure 2 Method steps S110 to S130 in the text Figure 3 Method steps S210 to S230 in the text Figure 4 Method steps S310 to S330 in the text Figure 5 Method steps S410 to S430, Figure 6 Method steps S510 to S530 in the text Figure 7 Method steps S610 and S620 in the text Figure 8 Method steps S710 and S720, and Figure 9 The method involves obtaining the air conditioner's operating parameters, environmental parameters, and set humidity. Based on the environmental parameters, the dew point temperature under the current conditions is calculated. Then, based on the set humidity, dew point temperature, environmental parameters, and operating parameters, the dehumidification mode of the air conditioner is determined, and its operating state is controlled. By controlling the air conditioner to operate in different states under different dehumidification modes, a better dehumidification effect can be achieved, which is beneficial to improving the user experience.

[0153] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0154] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A dehumidification control method for an air conditioner, characterized in that, include: Obtain the operating parameters, environmental parameters, and set humidity of the air conditioner; Calculate the dew point temperature under the current conditions based on the environmental parameters; Based on the set humidity, the dew point temperature, the environmental parameters, and the operating parameters, the dehumidification mode of the air conditioner is determined and the operating status of the air conditioner is controlled. The dehumidification modes include fast mode, high-efficiency mode and silent mode; The fan speed in the fast mode is greater than the preset speed when the air conditioner is turned on, and the evaporation temperature setting value is determined based on the dew point temperature and the fan speed in the fast mode. The fan speed in the high-efficiency mode is determined based on the dew point temperature, and the evaporation temperature setpoint is also determined based on the dew point temperature. The fan speed in the silent mode is lower than the preset speed when the air conditioner is turned on, and the evaporation temperature setting value is determined based on the dew point temperature and the fan speed in the silent mode.

2. The dehumidification control method according to claim 1, characterized in that, The environmental parameters include indoor air humidity; determining the dehumidification mode of the air conditioner includes: When the humidity difference is greater than or equal to the first preset value, the air conditioner is controlled to operate in the fast mode; When the humidity difference is greater than the second preset value and less than the first preset value, the air conditioner is controlled to operate in the high-efficiency mode. When the humidity difference is less than or equal to the second preset value, the air conditioner is controlled to operate in the silent mode. The humidity difference is the difference between the indoor air humidity and the set humidity, and the second preset value is less than the first preset value.

3. The dehumidification control method according to claim 2, characterized in that, The operating parameters include the evaporation temperature. In the fast mode, controlling the operating status of the air conditioner includes: Set the fan speed to the first speed; The evaporation temperature setpoint is determined based on the dew point temperature and the first rotation speed. Adjust the opening of the electronic expansion valve and the compressor frequency according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

4. The dehumidification control method according to claim 2, characterized in that, The operating parameters include the evaporation temperature. In the high-efficiency mode, controlling the operating status of the air conditioner includes: The evaporation temperature setpoint is determined based on the dew point temperature. The fan speed is determined based on the dew point temperature and the evaporation temperature setpoint. Adjust the opening of the electronic expansion valve and the compressor frequency according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

5. The dehumidification control method according to claim 2, characterized in that, The operating parameters include the evaporation temperature. In the silent mode, controlling the operating status of the air conditioner includes: Set the fan speed to the second speed and the compressor frequency to the first frequency, where the first frequency is less than the preset frequency when the air conditioner is turned on. The evaporation temperature setpoint is determined based on the dew point temperature and the second rotation speed. Adjust the opening of the electronic expansion valve according to the evaporation temperature setpoint so that the evaporation temperature is equal to the evaporation temperature setpoint.

6. The dehumidification control method according to any one of claims 3 to 5, characterized in that, When the evaporation temperature setpoint is less than or equal to the frosting critical temperature, the value of the frosting critical temperature is used as the evaporation temperature setpoint.

7. The dehumidification control method according to claim 3 or 4, characterized in that, The adjustment of the electronic expansion valve opening and compressor frequency according to the evaporation temperature setpoint includes: When the evaporation temperature is greater than the set evaporation temperature value, increase the opening of the electronic expansion valve and / or increase the compressor frequency; When the evaporation temperature is lower than the set evaporation temperature value, reduce the opening of the electronic expansion valve and / or reduce the compressor frequency.

8. The dehumidification control method according to claim 5, characterized in that, The step of adjusting the opening of the electronic expansion valve according to the evaporation temperature setpoint includes: When the evaporation temperature is greater than the set evaporation temperature value, increase the opening of the electronic expansion valve; When the evaporation temperature is lower than the set evaporation temperature value, the opening of the electronic expansion valve is reduced.

9. The dehumidification control method according to any one of claims 3 to 5, characterized in that, When the evaporation temperature equals the evaporation temperature setpoint, after running for a first preset time, the operating parameters, environmental parameters, and set humidity of the air conditioner are reacquired, and the dew point temperature is recalculated.

10. An operation control device, characterized in that, It includes at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the dehumidification control method as described in any one of claims 1 to 9.

11. An air conditioner, characterized in that, Includes the operation control device as described in claim 10.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the dehumidification control method as described in any one of claims 1 to 9.

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